Cup adapter for use in cylindrical sockets



FIG. 1 is a top, front, left side perspective view of the cup adapter for use in cylindrical sockets showing our new design;

FIG. 2 is a front elevational view thereof, the opposite side being identical;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a cup adapter for use in cylindrical sockets, as shown and described. 